21809969139

素因数分解:

$3^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{347}}^1\times {\mathrm{1789}}^1$

素因数の和:2392

約数の個数: 48

約数和(自身を含む): 34086182400

約数和(自身を除く): 12276213261

約数列:

[1, 3, 7, 21, 49, 147, 239, 347, 717, 1041, 1673, 1789, 2429, 5019, 5367, 7287, 11711, 12523, 17003, 35133, 37569, 51009, 82933, 87661, 248799, 262983, 427571, 580531, 620783, 1282713, 1741593, 1862349, 2992997, 4063717, 4345481, 8978991, 12191151, 13036443, 20950979, 30418367, 62852937, 91255101, 148367137, 445101411, 1038569959, 3115709877, 7269989713, 21809969139]

約数ペア:

[(1, 21809969139), (3, 7269989713), (7, 3115709877), (21, 1038569959), (49, 445101411), (147, 148367137), (239, 91255101), (347, 62852937), (717, 30418367), (1041, 20950979), (1673, 13036443), (1789, 12191151), (2429, 8978991), (5019, 4345481), (5367, 4063717), (7287, 2992997), (11711, 1862349), (12523, 1741593), (17003, 1282713), (35133, 620783), (37569, 580531), (51009, 427571), (82933, 262983), (87661, 248799)]